HV SERIES

PTC Vibrodrivers are efficient hydraulic vibratory hammers that produce vertical vibrations to drive or extract a wide variety of profiles:

Sheet piles

H and I beams

Casings and tubes

Concrete piles

Wooden piles

The Vibrodrivers work free hanging on crawler cranes and mobile cranes with
telescopic booms.

Vibrodriver Ranges:

PTC pile driving know-how has produced innovative piling technologies, which have been integrated into the different ranges of PTC Vibrodrivers to offer the most performant pile driving solution for each application.

PTC Vibrodriver Technology

Functional Principle

The Vibrodriver vibrates profiles, sheet piles or casings to drive or extract in vertical vibrations. This in turn causes the adjacent ground to shift. The ground is loosened, which leads to the pile being driven into the ground by its own and the vibrator's weight. It can be extracted by the same principle via the pulling force of the carrier (crane) in use.

Design

The vibrodriver is shifted in unidirectional vertical vibrations through the eccentrics mounted in the gearbox. The eccentrics, ordered in pairs, turn with the same angular velocity in opposite directions.

Both eccentrics generate centrifugal forces fc. The horizontal components fh are offset at the same time that the vertical components fv are added resulting in a centrifugal force Fc.

The element to be driven or extracted is clamped under the gearbox via a hydraulic clamp.

A yoke is located above the gearbox and prevents the transmission of vibrations through elastomer blocks. The heavy yoke causes an additional downward force through its own weight, which can be increased by adding additional weights.

The selection of a vibrodriver is based on:

Cross section of pile

Ram profile weight

Penetration

Soil layer consistency

Soil porosity

The diagram, which has been derived from experience, can be used to preselect the vibrodriver.

Moreover, driving efficiency can be improved by air or water jetting.

Parameters

is the product of the mass (m) of the eccentric and the distance (r) between its centre of gravity and its rotational axis. The eccentric moment of the vibrodriver is equal to the sum of the moments of the eccentrics:

Each eccentric generates a centrifugal force:

is the total vertical displacement of the vibrating elements during one complete revolution of the eccentrics. The maximum amplitude is achieved using the formula:

This is the sum of the weights of the vibrating gearbox, the clamping head and the element to be driver or extracted.

Brand

:

PTC

Group

:

Vibrodriver Ranges

Type

:

HV Series

General Dimensions

HV SERIES HYDRAULIC VIBRODRIVERS

The PTC HV Series is economical and is an intermediate size industrial vibrator with the advantages of the variable amplitude, but working at the standard frequency while obtaining similar results.

These hydraulic vibrators consist of the variable moment system which is incorporated in the vibrator and allows the starting up and stopping down without shaking due to the control of the amplitude.

Other main features include:

Standard frequency

The HV does not damage the excavator's hydraulic cylinders

Able to work near sensitive buildings, or other delicate equipment, and in built up areas without damaging the environment

With our 10,000 Sq.Meter state-of-the-art Workshop facility and a team of over 200 technical experts, East & West Trading can respond to any repair requirements for its clients. We have the capacity to carry out everything from routine machinery checkups, all the way to engine overhaul and body fabrications.

The Spare Parts Department provides an after-market, integrated supply service for a variety of genuine parts and components for KOBELCO cranes, SAKAI road construction equipment, PTC vibrodrivers, and many other brands of constructional heavy equipment and specialized attachments.